Mycotaxon 73: 97 (1999).

Basionym: Graphis consocians Nyl., Bull. Soc. Linn. Normandie, Sér. 2 2: 116 (1868).

Chemistry: Stictic acid, constictic acid, cryptostictic acid, hypostictic acid, hypoconstictic acid, alpha-acetylconstictic acid (Singh & Sinha 2010: 66).

Ecology: Corticolous.